Sash-pulley.



P. P. SMITH.

SASH PULLEY. APPLICATION FILED AUG. 28, 1911.

1,0174 14. Patented Feb. 13, 1912.

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FRANK F. SMITH, OF NEWARK, NEW JERSEY.

SASH-PULLEY.

Application filed August 28, 1911.

To all whom it may concern:

Be it known that I, FRANK F. SMITH, a citizen of the United States,residing at Newark, in the county of Essex and State of New Jersey, haveinvented certain new and useful Improvements in Sash-Pulleys, of whichthe following is a specification.

My present invention relates to an improved construction of sash-pulleyintended particularly for use in connection with fireproof windows, andespecially adapted to be made of malleable iron castings. Its advantagesof simplicity and of inherent strength, both of construction and of thematerials of which it is adapted to be made, will be appreciated bythose skilled in the art from an understanding of the followingdescription in connection with the drawings.

In the drawings showing one of the specific forms, which my improvedconstruction may take, Figure 1 is a side elevation of my sash-pulleyshown complete in as sembled position on the corner of a sheetmetalwindow frame, said frame being shown in vertical section. Fig. 2 is aside elevation of the housing-part of the construction shown separatefrom the other parts. Fig. 3 is an underneath plan view of saidhousing-part, that is a view looking at said part from below in Fig. 2.Fig. & is a side elevation of the fork-part of the construction shownseparate from the other parts. Fig. 5 is a rear elevation of thefork-part, that is a View looking at said part from the right in Fig.4:. Fig. 6 is a side elevation of the pulley detached, and Fig. 7 is aplan view of its axle-pin.

I will now describe the device of the drawings, reserving it to theclaims to point out the novel features and to define the scope of theinvention, it being understood that the claims will be given the duerange of equivalents to which they may be entitled in view of the art.

My improved sash-pulley construction consists of two main parts, namelya hous ing-part 1 and a fork-part 2, together with a grooved sash-pulley3 having an axlehole 3 through it, and an axle-pin 4 adapted to bereceived through the hole 3" with bearing fit so that the pulley rotateson the pin 4 as an axle.

The housing-part 1 consists of a hollow hood or housing 1 whichrotatably sup ports within it the sash-pulley 3 as will be Specificationof Letters Patent.

Patented Feb. 1 3, 1912.

Serial No. 646,541.

iereinafter described and as is shown in Fig. 1. The sash chain or cordruns over the grooved periphery of this pulley and between it and thesurrounding interior of the housing to connect on the one side with thesash and on the other with the sash weight in the same manner which iscommon and well understood in the art, and is, therefore, notillustrated.

The housing-part 1 in addition comprises a strap 1 extending rearwardlyfrom the bottom of the housing 1 and is provided with a bolt-hole orholes 1 which may be single or plural, round or elongated as shown.Further this strap is provided with bolts 1 or other securing meansadapted to these holes for securing the strap 1 to the upper side of thecorner of the window frame. In the drawings the undersides of the holes1 are countersunk to correspond with the heads of the bolts so that ontaking up on the nuts of the bolts the sheet-metal 5 of the window frameis drawn into the countersunk portions of the bolt-holes in the strap topermit the heads of the bolts to become themselves countersunk so thatthe tops of the heads are substantially flush with the exposed face ofthe sheet-metal However, this countersinking is a mere detail ofconstruction, for which no invention is claimed. Finally, the sides ofthe housing 1 are provided with a pair of grooves 1 which in directionextend transversely to the length of the strap 1 these groovesconsisting of the spaces between the ridges 1 formed on the sides of thehousing, and extending through the bottoms of the grooves 1 are holesadapted to receive through them the axle-pin 1 to support said pin andits pulley in operative position in the housing as shown in Fig. 1.

The housing-part 1 consisting, as described, of the hollow hood 1, strap1 and the grooves 1 formed between the ridges 1 is adapted to be made ofa single malleable iron casting.

The fork-part 2 of the construction consists of a strap 2 havingcountersunk holes 2 provided with bolts or other securing means 2 insubstantial correspondence with the similar devices already described inconnection with the strap 1 of the housingpart. The fork-part takes itsname from the fork 2 on the upper end of the strap 2*. The planes of theterms of this fork are transverse to the plane of the strap 2*.

Further they are adapted to straddle the sides of the housing 1* and indoing so are received slidably into the grooves i The arms 2 preferablytaper slightly toward their free ends as do also the sides of thegrooves I with the result that the parts when engaged tend to fittogether more snugly and tightly than they would do if the parts engagedon parallel lines. arms 2 have holes 2 through them which aline with theholes l in the sides of the housing when the parts are assembledtogether as in Fig. 1. The result is that when the aXle-pin 4; isinserted through the holes 2 and 1 of the fork and housing-parts as Wellas through the hole 3 in the pulley and is upset at its ends, itpermanently unites all of the parts of the sash-pulley construction atthe same time that it forms the axle on which the pulley 3 rotates.

It will be noted from Figs. 1 and f that the inner face of the strap ofthe fork-part 2 is preferably provided with a transverse recess 2*,which is adapted to receive into it the joint 8 formed by theinterlocked edges connecting the pieces of sheetmetal at the corner ofthe window-frame. It will be seen that the fork-part is also adapted tobe a malleable iron casting.

What I claim is:

1. The improved sash-pulley construct-ion consisting of a housing-part,a fork-part, a sash-pulley and an axle-pin, the housingpart consistingof a housing adapted to operatively contain the sash-pulley and having astrap extending rearwardly from its base, the sides of the housinghaving grooves which extend transversely to the length of the strap, andsaid fork-part consisting of a strap having a fork at one end whose armsslidably enter the grooves in the sides of the housing, the arms of thefork and the sides of the housing having holes through them which are inalinement when the housing and fork-parts are assembled together toreceive through them the aXle-pin which likewise operatively supportsthe pulley in the housing, and securing means on said straps forsecuring them and the entire construction to the corner of thewindow-frame.

2. The improved sash-pulleyconstruction consisting of a housing-part, afork-part, a

The

sash-pulley having an axle-hole therethrough, and an axle-pin, thehousing-part consisting of a hollow housing adapted to contain thesash-pulley and having a strap extending rearwardly from the bottom ofthe housing, the sides of the housing having grooves extendingtransversely relatively to the strap and the sides of said groovesconverging toward the top of the housing, and said fork-part consistingof a strap having a fork at one end the planes of whose arms aretransverse to the plane of the strap, the sides of said arms convergingtoward their free ends to slidably enter endwise the grooves in thesides of the housing, the arms of the fork and the sides of the housinghaving holes through them, which are in alinement when the housing andfork-parts are assembled as described to receive through them theaxle-pin which likewise passes through the axle-hole in the pulley tooperatively support it in the housing, the aforesaid straps beingprovided with securing means for securing them and the entireconstruction to the corner of the windowframe.

8. The improved sash-pulley construction consisting of a housing-part, afork-part, a sash-pulley and an axle-pin, the housingpart consisting ofa housing adapted to 0p eratively contain the saslrpulley and having astrap extending rearwardly from its base, and said fork-part consistingof a strap having a fork at one end whose arms straddle the sides of thehousing when the housing and fork-parts are assembled together, the armsof the fork and the sides of the housing having holes through them whichare in alinement when the parts are assembled together, said holesreceiving through them the axle-pin which likewise operatively supportsthe pulley in the housing, and securing means for securing the strapsand the entire construction to the corner of the window-frame.

In testimony whereof I afiiX my signature in presence oftwo witnesses.

FRANK F. SMITH. Witnesses:

E. W. SCHERR, Jr., ALAN C. MCDONNELL.

Copies of this patent may be obtained for five cents each, by addressingthe Gommissioner of Pa' nls Washington, D. C.

